need help with zip extraction

[Moieen Khatri]

Hi,

Can someone please help with the below issue.

I cannot extract(unzip) the zip file content using the below code:

public class ZipTester {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			ZipProcessor.zipFileExtractor("D:\\mbmkh\\Moieen_work\\Zip Extraction\\source", "D:\\mbmkh\\Moieen_work\\Zip Extraction\\destination", "DURSME_1.xml.zip");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}

The above zipFileExtractor() method takes 3 paramters(source folder,destination folder,zip file name),I have placed the above zip file in the source folder.


The method which is called is given below:

public static String zipFileExtractor (String srcFolderpath, 
			String destFolderpath, String zipFileName) throws Exception {
		final int BUFFER = 2048;
		String impFileName = null;
		ZipInputStream zipFile = null;
		FileInputStream zipFIS = null;
		String filename = null;
		try {
			
			System.out.println(srcFolderpath +"\\"+ zipFileName);
		 

			zipFIS = new FileInputStream( srcFolderpath +"\\"+ zipFileName);
			
			zipFile = new ZipInputStream( new BufferedInputStream( zipFIS ));
			ZipEntry entry; 
			while ( ( entry = zipFile.getNextEntry()) != null ) {		
				int count;
				byte data[] = new byte[BUFFER];
				filename = entry.getName();
				/*if ( !filename.toLowerCase().endsWith("imp") ){
					StringTokenizer sO = new StringTokenizer( entry.getName(), "/" );
					sO.nextToken();
					filename = sO.nextToken();
				}*/
				FileOutputStream fos = new FileOutputStream(  destFolderpath+"\\"+filename );
				BufferedOutputStream destination = new BufferedOutputStream ( fos, BUFFER );
				while ( (count = zipFile.read( data, 0 , BUFFER )) != -1 ) 
				{
					destination.write( data, 0, count );	  		
				}
				/*if ( filename.toLowerCase().endsWith("imp") ) {
					impFileName = filename;
				} */				
				destination.flush();
				destination.close();
			}
		} catch (Exception e) {
			
		}	finally{
			try {
				zipFIS.close();
				zipFile.close();
			} catch (IOException e) {
			}
		}
		return filename; //if some exception or error while extracting
	}

When I run the main method I get null value in the below variable:

zipFile = new ZipInputStream( new BufferedInputStream( zipFIS ));

Can someone please help.

Thanks

[Moieen Khatri]

I just noticed that my code doesnt work for files with DURSME_1.xml.zip extension,however if the file has the extension DURSME_1.zip the code works fine.

Is there any workaround for this?I need the code to work for files with the extension .xml.gz,.xml.zip,.zip

Please can some help with this?


Many Thanks in advance!

[Ulf Dittmer]

Please do not post the same question to multiple forums: CarefullyChooseOneForum

Let's continue the discussion in this duplicate thread.